JP2009021147A - Assembly component inspection device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an assembly component inspection device that performs all of the required processing by using an inexpensive image sensor, inexpensively facilitates adjustment, and performs a high-accuracy assembly inspection. <P>SOLUTION: The assembly component inspection device includes a display panel 6 for showing a specified assembly array, a fixing means composed of a clamp device 8 and setting bases 7, 7 for fixing each junction box J to which each relay R to be assembled according to the display of the display panel 6 is assembled, an inspection body 9 having an image sensor 24 for detecting whether or not each assembly component R, assembled to each object J fixed by the fixing means so as to be assembled with each assembly component, is properly assembled, and a determination means 21 that determines an assembled state by analyzing detection data detected by the image sensor 24. When the determination result of the assembled state of each assembly component R to each object J to be assembled with each assembly component by the determination means 21 is improper, the assembly component inspection device prevents each object J, fixed by the fixing means so as to be assembled with each assembly component, from being extracted. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an apparatus for inspecting whether or not a predetermined assembly component is properly assembled to a body to be assembled as specified, and in particular, the assembly component is a plurality of types of relays, The present invention relates to an assembly part inspection apparatus that inspects whether or not the relay is properly assembled in a junction box that is an assembly to which the relay is assembled.

  In general, the assembly of a plurality of relays to a junction box installed in an instrument panel or the like in an automobile cabin is color-coded for the plurality of relays according to the type, and according to a pre-defined assembly arrangement in one junction box. This is done by assembling the required relays while identifying them by color.

  In order to check whether or not a plurality of relays assembled in a single junction box are properly assembled in a specified arrangement, conventionally, a single proximity sensor and a single color are used for each relay. A multi-sensor type inspection apparatus including a color sensor for all colors of relays that can only be identified has been used.

  The relay assembly inspection by this multi-sensor type inspection apparatus has been performed in a process as shown in the flowchart of the assembly work procedure of FIG. That is, in the determination process of whether or not the assembly parts are assembled by the conventional multi-sensor type inspection device, the proximity sensor determines whether or not any relay is assembled at a predetermined arrangement position in the junction box. (Step t8) As a result, when any relay is assembled, the color sensor is identified by each color sensor (step t9 to step t (8 + n)). The method is completed by performing the method on all the assembly locations of the relays in one junction box, and the processing steps are very many and complicated.

  The conventional multi-sensor type inspection device requires a large number of sensors to identify individual relays. Therefore, many adjustment operations such as adjustment of each sensor and adjustment of sensor synchronization are required when the inspection device is started up. In addition, the maintenance work is complicated and troublesome. Further, if any one of the plurality of sensors does not operate correctly, the purpose of the entire inspection apparatus cannot be achieved, and there is a problem that the inspection accuracy is lowered.

  The present invention has been created in view of the above-described problems, and performs all necessary processes by using an inexpensive image sensor, so that it is easy to make adjustments while being low-cost and highly accurate assembly inspection. An object of the present invention is to provide an assembly part inspection apparatus that can be performed.

  In order to achieve the above object, the present invention provides an assembly part inspection apparatus for inspecting whether or not an assembly part is assembled to an assembly according to a specified assembly arrangement. An image sensor that detects the color of the assembled part and the detected data detected by the image sensor are compared with the predetermined assembly arrangement data so that the assembly part is attached according to the predetermined assembly arrangement. It is characterized by comprising determination means for determining whether or not it is assembled to the body.

  In addition, when it is determined by the judging means that the assembly parts are assembled to the assembly according to the assembly arrangement, the assembly is released and the assembly parts are assembled according to the assembly arrangement. When it is determined that the assembled body is not assembled, it is preferable to provide a fixing means that does not release the fixed body.

  The fixing means includes a frame-shaped set base that can accommodate a part or the whole of the assembled body, and a clamp that temporarily fixes the assembled body accommodated in the set base. .

  The assembly component inspection apparatus of the present invention uses a single inexpensive image sensor to detect the assembly arrangement of the assembly components with respect to the assembly, and detects by this image sensor. By performing image analysis processing on the detected data, it is configured to perform both the role of the proximity sensor and the role of the color sensor for each color, so that adjustment can be performed easily and with high accuracy at a low cost. In addition, since the number of sensors has decreased, the number of failures and malfunctions has been reduced, making it possible to reduce maintenance work.

  Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying FIGS. The assembled component inspection apparatus 1 of the present embodiment is a device for properly assembling the relay R, which is an assembled component, to the junction box J, which is an assembly, and the relay R assembled to the junction box J. The present invention will be described by taking as an example an apparatus configured to inspect whether or not the apparatus is properly assembled. In addition, the relay R is color-coded for each type, and is configured so that the type of the relay R can be identified by visually confirming the color from the appearance.

As shown in FIG. 1, the assembled part inspection apparatus 1 includes a total of four support columns 2, 2, 2, 2, which are erected one by one at each vertex position of a planar rectangular region, A pedestal 4 composed of a horizontal substrate 3 having a rectangular shape in plan view formed integrally with the support columns 2, 2, 2, 2 is provided at the upper ends of the support columns 2, 2, 2, 2.
On the pedestal 4, a flat work table 5 formed in a plane shape congruent with the substrate 3 of the pedestal 4 is fixed. On one side of the peripheral edge of the work table 5, a display board 6 is provided in which a color corresponding to a required relay R and its assembly position are shown.

Nearly the center of the work table 5 is provided with two pairs of frame-shaped set tables 7 and 7 each having an open top for accommodating the junction box J.
In the vicinity of the side position of the set table 7 on the work table 5, a clamp device 8 configured to fix the junction box J accommodated in the set tables 7 and 7, and the junction box J in the set tables 7 and 7. An inspection body 9 for inspecting whether or not the relay R assembled inside is properly assembled is connected.

  Further, as shown in FIG. 2, the assembly component inspection apparatus 1 of the present embodiment is detected by a drive system control means 20 for controlling the operation of the clamp device 8 and the operation of the inspection body 9 and the inspection body 9. The detection means 21 for analyzing and determining the detected data is connected to be configured so that its control and operation are appropriately performed. The drive system control means 20 includes a clamp device operation button (not shown) for operating the clamp device 8, a determination button (not shown) for operating the test body 9, and a forced clamp release button (FIG. (Not shown).

  The display board 6 displays the type and position of the relay R to be assembled in a desired pair of junction boxes J, has a flat plate shape, and the contents are displayed on one side facing the work table 5 side. It is configured so that it can be displayed freely. This display is performed by displaying the array data stored in the database 22 using an electroluminescent element.

  The clamp device 8 has a fixed portion 11 formed in a double arch shape by connecting two arch-shaped portions 10, 10, and a substantially square shape that supports the fixed portion 11, and its base end portion is The support member 12 is configured to be pivotally attached to the work table 5 so as to be rotatable. The fixing portion 11 is rotated by the motor 23 being driven in accordance with the operation of a clamp device operation button disposed on the drive system control means 20, with the rotation of the support member 12 being connected to the drive system control means 20. The fixing portion 11 is fixed by pressing down the base end portions of the wire harnesses 13 and 13 extending from one side surface of the box-shaped member of the junction box J accommodated in the set bases 7 and 7 from the upper side to the lower side. .

  The inspection body 9 has two inspection heads 14 and 14 each having an image sensor 24 and a substantially square shape that supports the inspection heads 14 and 14, and its base end portion is rotatable with respect to the work table 5. The support member 15 is configured to be pivotally attached. The two inspection heads 14 and 14 are connected in parallel with each other in a bridging manner, and the left and right inspection heads 14 and 14 are respectively disposed on the left and right set bases 7 and 7 disposed on the work table. Configured to correspond. The image sensor 24 is connected to the determination unit 21 and configured to analyze the detection data detected by the image sensor 24 and determine the assembled state. Further, the inspection body 9 is rotated by the motor 23 being driven in accordance with the operation of the determination button disposed on the drive system control means 20, with the rotation of the support member 15 being connected to the drive system control means 20. Thus, the inspection heads 14 and 14 are moved toward the relay R in the junction box J so that the appropriateness of the assembled state can be determined.

  As shown in FIG. 3, the junction box J is composed of a flat rectangular bottom portion and side walls rising vertically from the four sides of the bottom portion, and the inside of the junction box J is vertically extended by a partition plate rising vertically from the bottom portion. There are two box-shaped members 16, 16 that are partitioned into an appropriate number of small chambers and open at the top. The inside of the two box-shaped members 16 and 16 in the junction box J of the present embodiment is divided into two small chambers 16a, 16b and 16c, 16d by dividing the central portion in the longitudinal direction by one partition plate. It is defined.

Inside these two box-shaped members 16, 16 are connectors (not shown) for electrically connecting the relay R assembled in the junction box J and an external circuit, respectively. , And 16 small rooms. These individual connectors are connected to wire harnesses 13 and 13 bundled on one side surface of box-shaped members 16 and 16, respectively.
The wire harnesses 13 and 13 extending from one side surface of the two box-shaped members 16 and 16 are taped and bundled together to form a pair of junction boxes J.

  In order to assemble the relay R to the junction box J using the assembled part inspection apparatus 1 configured as described above, the operation proceeds according to the flowchart shown in FIG. First, as shown in FIG. 1, the display board 6 refers to the DB 22 and displays the assembly position of the relay R to be assembled to the junction box J and the corresponding color (step s1).

  Next, as shown in FIG. 5, the two box-like members 16 and 16 of the pair of junction boxes J are fitted one by one into each of the two set stands 7 and 7 provided on the work table 5. Accommodates (step s2). At this time, the operation button of the clamp device of the drive system control means 20 is turned on (step s3). As a result, the drive system control means 20 drives the fixed portion motor 23a, and the support member 12 of the clamping device 8 rotates, so that the fixed portion 11 having a double arch shape becomes the junction box J as shown in FIG. The two bundles of wire harnesses 13 and 13 extending from the base are pressed by the respective arch-shaped portions 10 and 10, and the junction box J is fixed to the set bases 7 and 7 (step s4).

  In this state, the worker attaches the corresponding relay R to each small room 16a, 16b, 16c, 16d of the junction box J accommodated and fixed on the set base 7, 7 according to the instruction displayed on the display board 6 ( Step s5). After completing this assembly, the determination button of the drive system control means 20 is turned on (step s6). As a result, the drive system control means 20 drives the inspection body motor 23b, and the support member 15 of the inspection body 9 rotates, so that the inspection heads 14 and 14 are connected to the relay R in the junction box J as shown in FIG. Is covered from above (step s7).

  The detection data detected by the image sensor 24 is read by the determination means 21, and the appropriateness of the assembly is determined by a predetermined image analysis calculation process (step s8). Specifically, the detection data detected by the image sensor 24 shown in FIG. 2 is analyzed as light intensity of red, green, and blue for each of the small rooms 16a, 16b, 16c, and 16d by the image processing means 25, and the comparison means. 26 compares the light intensity with red, green, and blue light intensity data based on a predetermined assembly sequence stored in the database 22. At this time, the comparison unit 26 determines that the red, green, and blue light intensities of the small rooms exceed a certain error range from the red, green, and blue light intensity data based on the specified assembly sequence stored in the database 22. If they are different from each other, it is determined that the assembly is unsuitable, and if not, it is determined that the assembly is appropriate, that is, the assembly parts are assembled to the assembly according to the specified assembly sequence.

  If the above determination result is appropriate, the display / notification means 27 sends a signal to the display unit 6 to light the blue lamp 61. At the same time, the display / notification means 27 sends a command to the drive system control means 20, and the drive system control means 20 drives the fixed part motor 23a and the test object motor 23b. As a result, the clamped state of the clamping device 8 that has fixed the junction box J is released, and the clamped state of the inspection object 9 is also released (step s9). Finally, the junction box J is removed from the set bases 7 and 7 to complete the assembling work (step s10).

  When it is determined that the determination result by the determination unit 21 is inappropriate, the display / notification unit 27 sends a signal to the display unit 6 to turn on the red lamp 62. At this time, since the display / notification means 27 does not send a command to the drive system control means 20, the clamped state of the clamping device 8 that has fixed the junction box J is not released. Therefore, the operator turns on the forced clamp release button provided in the drive system control means 20 to release the clamped state of the junction box J by the clamp device 8, and re-assess the relay R again to determine again. . That is, steps s5 to s8 are performed again. This operation is repeated until the determination result by the determination means 21 is determined to be appropriate. Finally, all the required relays R are properly assembled to the junction box J to complete the assembly operation.

  As described above, the assembly part inspection apparatus 1 according to the present invention is for assembling a required assembly part properly to an assembly and has various forms within the scope not departing from the gist thereof. Can be implemented.

It is a perspective view of the assembly | attachment component inspection apparatus of this embodiment. It is a block diagram which shows the assembly | attachment component inspection apparatus of FIG. It is a perspective view of junction box J which is a to-be-assembled body of this embodiment. It is a flowchart which shows the assembly | attachment procedure with respect to the junction box 1 of the relay R which is an assembly | attachment component by the assembly | attachment component inspection apparatus of this embodiment. It is a perspective view which shows the state which accommodated the two box-shaped members of a pair of junction box in the left-right paired set stand on the work stand of the assembly component inspection neglect of this embodiment. A state in which two bundles of wire harnesses extending from respective root portions of two box-like members housed in a pair of left and right set stands for assembly part inspection neglect of this embodiment are pressed and fixed by a clamp device FIG. Inspection while holding and fixing two bundles of wire harnesses extending from the base portions of the two box-shaped members housed in the pair of left and right set stands of the assembled part inspection stand of the present embodiment by the clamp device It is a perspective view which shows the state which has detected and inspected the assembly state of the relay assembled | attached to the box-shaped member by the body. It is a flowchart which shows the assembly | attachment procedure with respect to the junction box of the relay which is an assembly | attachment component in the conventional multi-sensor type inspection apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Assembly component inspection apparatus 2 Support | pillar 3 Substrate 4 Base 5 Work table 6 Display board 7 Set stand 8 Clamping device 9 Inspection body 10 Arch shape part 11 Fixing part 12 Support member 13 Wire harness 14 Inspection head 15 Support member 16 Box-shaped Member R Relay J Junction box

Claims (3)

An assembly part inspection device for inspecting whether an assembly part is assembled to an assembly according to a prescribed assembly arrangement,
An image sensor for detecting the color of the assembly component assembled to the assembly to be assembled, and the assembly component is determined by comparing the detection data detected by the image sensor with predetermined assembly sequence data. An assembly part inspection apparatus comprising: a determination unit that determines whether the assembly is assembled according to the assembly arrangement.   When it is determined by the determining means that the assembly part is assembled to the assembly according to the assembly arrangement, the assembly assembly is released, and the assembly component is attached to the assembly. The assembly part according to claim 1, further comprising a fixing unit that does not release the fixation of the assembly when it is determined that the assembly is not assembled according to the arrangement. Inspection device.   The fixing means includes a frame-shaped set base capable of accommodating a part or the whole of the assembled body, and a clamp for temporarily fixing the assembled body accommodated in the set base. The assembly part inspection device according to claim 2.

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